Assisting mullion for curtain wall connection



FIG. 1 is a front elevational view of an assisting mullion for curtain wall connection showing my new design, the rear is identical thereto;

FIG. 2 is a left side view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom plan view thereof.

The length of the assisting mullion for curtain wall connection is not claimed. 

The ornamental design for an assisting mullion for curtain wall connection, as shown and described. 